Methods and apparatuses for synchronising data at a network and function

Abstract

Embodiments described herein relate to methods and apparatuses for synchronizing data at a second network function. A method in a first network function includes: receiving, from the second network function, an indication of potential registration data inconsistency associated with one or more wireless devices; receiving a registration request for a first wireless device from a third network function, wherein the registration request includes a first indication indicating that a reason for the registration request is potential data inconsistency; and responsive to receiving the registration request, updating the registration data at the second network function.

1 .- 56 . (canceled) 
     
     
         57 . A method in a first network function for synchronizing data at a second network function, the method comprising:
 receiving, from the second network function, an indication of potential registration data inconsistency associated with one or more wireless devices;   receiving a registration request for a first wireless device from a third network function, wherein the registration request comprises a first indication indicating that a reason for the registration request is potential data inconsistency; and   responsive to receiving the registration request, updating the registration data at the second network function.   
     
     
         58 . The method as claimed in  claim 57  further comprising:
 notifying one or more fourth network functions of the potential registration data inconsistency for the one or more wireless devices. 
 
     
     
         59 . The method as claimed in  claim 58  wherein the one or more fourth network functions each comprise a Network Exposure Function. 
     
     
         60 . The method as claimed in  claim 58  further comprising:
 discovering the one or more fourth network functions from a fifth network function, wherein the one or more fourth network functions are registered at the fifth network function as potential registration data inconsistency endpoints. 
 
     
     
         61 . The method as claimed in  claim 60  wherein the fifth network function comprises a network repository function, NRF. 
     
     
         62 . The method as claimed in  claim 57  further comprising:
 notifying one or more third network functions of the potential registration data inconsistency for the one or more wireless devices. 
 
     
     
         63 . The method as claimed in  claim 62  wherein the one or more third network functions each comprise an Access and Mobility Management Function, AMF. 
     
     
         64 . The method as claimed in  claim 62  further comprising:
 discovering the one or more third network functions from a fifth network function. 
 
     
     
         65 . The method as claimed in  claim 57  further comprising registering, at a fifth network function, that the first network function is configured to receive potential inconsistent registration data notifications. 
     
     
         66 . The method as claimed in  claim 65  wherein the fifth network function comprises a network repository function, NRF, the first network function comprises a unified data management, UDM, and the second network function comprises a unified data repository, UDR. 
     
     
         67 . A method in a third network function for synchronizing data at a second network function, the method comprising:
 receiving, from a first network function, a notification of a potential registration data inconsistency for one or more wireless devices; and   responsive to receiving a registration update from a first wireless device of the one or more wireless devices, transmitting a registration request for a first wireless device to the first network function; wherein the registration request comprises a first indication indicating that a reason for the registration request is potential registration data inconsistency.   
     
     
         68 . The method as claimed in  claim 67  wherein the third network function comprises an Access and Mobility Management Function, AMF, and the first network function comprises a unified data management, UDM, function. 
     
     
         69 . The method as claimed in  claim 67  further comprising:
 responsive to receiving the notification from the first network function, recording that the one or more wireless devices have inconsistent registration data. 
 
     
     
         70 . A method in a fourth network function for synchronizing data at a second network function, the method comprising:
 registering that the fourth network function is configured to receive potential inconsistent registration data notifications at a fifth network function;   receiving, from a first network function, a notification of a registration request for a first wireless device of the one or more wireless devices;   responsive to receiving the notification of a registration request, transmitting a subscription request for the first wireless device to the first network function, wherein the subscription request comprises a second indication indicating that subscription request is intended to restore data at a second network function;   receiving, a notification of a potential registration data inconsistency for one or more wireless devices.   
     
     
         71 . The method as claimed in  claim 70  wherein the notification of a potential registration data inconsistency for one or more wireless devices is received from a first network function or a second network function. 
     
     
         72 . The method as claimed in  claim 71  wherein the first network function comprises a unified data management, UDM, function, the second network function comprises a unified data repository, UDR, function, the fifth network function comprises a network repository function, NRF, and the fourth network function comprises a network exposure function, NEF. 
     
     
         73 . A method in a second network function for synchronizing data at the second network function, the method comprising:
 obtaining an indication of one or more first network functions from a fifth network function; wherein the one or more first network functions are associated with a potential inconsistent registration data notification type in the fifth network function.   
     
     
         74 . The method as claimed in  claim 73  wherein the step of obtaining an indication of one or more first network functions comprises:
 transmitting a first discovery request to the fifth network function, wherein the first discovery request indicates the type of the first network function; 
 receiving one or more first network function profiles from the fifth network function; and 
 selecting the one or more first network functions as the one or more first network functions that have the potential inconsistent registration data notification type in the one or more first network function profiles. 
 
     
     
         75 . The method as claimed in  claim 73  further comprising:
 transmitting, to the one or more first network functions, an indication of the potential registration data inconsistency for the one or more wireless devices. 
 
     
     
         76 . The method as claimed in  claim 73  wherein the second network function comprises a Unified Data Repository, UDR, function. 
     
     
         77 . A first network function for synchronizing data at a second network function, the first network function comprising processing circuitry configured to cause the first network function to perform the method as claimed in  claim 57 .